Ventilator.



E. D. RAWLINGS.

'VENTILATO'R. I APPLICATION FILED SEPT-13 l9l7 Patented Oct. 8, 1918.

atlozneq EMME'IT D. RAWLINGS, OF PORT HURON, MICHIGAN.

VENTILATOB.

Specification of Letters Patent.

Application filed September 13, 1917. Serial No. 191,222.

To all whom it may concern.

Be it known that I, EMMETT D. RAW- LINGS, a citizen of the United States,'and a resident of Port Huron, in the county of StClair and State of Michigan, have in vented new and useful Improvements in Ventilators, of which the following is a specification.

This invention relates to ventilators, which are well adapted to be used in connection with toilet rooms or the like, while not necessarily restricted to such use, and has particular reference to that class of ventilators wherein a forced draft is employed to effectuate ventilation. 1

An important object of this invention is to arovide in a device of the above mentioned character a means whereby polluted or undesirable atmosphere may be easily and effectively ejected from a room or the like.

A further object of the invention is to provide in a device of the above mentioned character a,means whereby-fresh or wholesome atmosphere may be easily and effectively injected }into a room or the. like from some remote or-IeX'ternal source.

A further object ofthis invention is to provide a device of the above mentioned character which is simple in construction, strong, durable and compact in the arrangement of its parts.

vOther objects and advantages of this invention will be apparent during the course of the following description.

. In the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation of a preferred embodiment of the device applied to a toilet,

Fig. 2 is a modified form of the same,

Fig. 3 is a central vertical longitudinal sectional view of a chamber having associated therewith. a preferred form of ejecting or injecting means,

Fig. 1 is a view of the same showing a modified form of ejecting or injecting means,

Fig. 5 isa face View of a rotary valve,- and Fig. 6 is a perspective view of bracket.

In the drawings, attention being called to Figs. 1 to 6 inclusive, the numeral 6.designates a commode, provided with a seat 7, and-connected by means of a pipe 8 to a tank orreservoir 9, secured to a wall indicated by Patented Oct. 8, 1918.

ally engagea bracket designated as a whole by the numeral 12, said bracket comprising a Vertically disposed elongated member 13,

each end of which is bent to a substantial 1 I right angle thereto as shown at 14. An

arm 15 is secured to the upright member 13 and is provided with a pair of diverging fin ers l6.

chamber indicated as a whole by the numeral 17 is disposed between the fingers 16 and secured therebetween 'bymeans-of bolts 17 or the like. This chamber 17 comprises an intermediate section 18. A detachable cover, having converging walls 20 and provided at the upper end thereof with a nipple 21, is disposed upon the intermediate section 18 and held in screw thread engagement therewith by means of screw threads 22 as shown. The intermediate section 18 is provided at its lower end with a bottom 23, having converging walls 24 and a downwardly extending flange 25. This bottom is held in a screw thread engagement with the intermediate section 18 by means of screw threads 26 as shown.

At an appreciable distance above the support 11 there is provided a relatively short pipe 27 which is passed through the wall 10 and connected with the nipple 21 by means of a flexible hos'e or the like indicated by the numeral 29.

The commodeG is coupled with the flange 25 by means of a flexible hose or the like, indicated by the numeral 30, the purpose of which will hereinafter be described.

,The above description is common to bot-h forms of my invention. In considering the preferred form of my invention, attention is called to Figs. 1, 3 and 5, wherein the numeral 31 indicates 'a hearing or housing disposed interiorly with respect to the intermediate section 18 and preferably formedintegraltherewith. The inner end of the hear- 'ing or housing 31 is provided with an angutically disposed shaft 35, having one end mounted within the journal 34 and its other end journaled within the bracket 32, is disposed within the intermediate section 18 as shown. This shaft is provided at its lower end with acollar 36 adapted to slidably engage the upper face-of the bracket 32. The upper end of the shaft 35 has secured thereto a propeller 37. A bevel gear 38, secured to the shaft 35, is adapted to engage a second bevel gear 39 carried by shaft 40 which is journaled in the casing or housing 31. The

outer end of the shaft 40 is provided with a sprocket 41, which is connected, by a sprocket chain 42, with a sprocket 43 se-' cured to a' shaft 44, this shaft bearing rotatably mounted at the end of a support 45, which is secured to the intermediate section 18 by means of bolts 46 or the like. A second sprocket 47 is secured to the shaft 44, and provided with asprocket chain 48, the

said sprocket chain being adapted to impart a rotary motion to the propel er 37 through the action of the gears 38, 39, the sprockets 41, 43 and 47 as will hereinafter be described.

The bottom 23 is provided'with a spout 23, the outer endof which has disposed thereupon a webbed plate 24 provided with openings 25, To the inner side of the plate 24 there is pivotally mounted a disk 26 pro vided with openings 27. This disk is adapted to be rotated inorder to bring the openings'27 thereof, into registration with the.

openings'25 of the plate 24" for a purpose which will hereafter be described.

In the modified form of my invention, attention being called to Figs. 2 and 4, the numeral 49 indicates atransversely disposed beam or support secured at each end to the inner walls of the bottom 24 and preferably formed integral therewith. A pair of upwardly projecting standards 50 are secured to the upper side of the beam 49 by means of bolts51 or the like. These standardsare spaced apart sufficiently to receive therebetween an electric motor 52. The armature shaft of the motor 52 is adapted to extend downwardly through the beam 49 andhas secured to the lower end thereof, a propeller 53 indentical to that indicated by the numeral 37 The motor 52 is supplied with electric energy from a suitable source by means of a conductor or circuit 54, which circuit has disposed therein a circuit closure as shown at 55, the said circuit jclosure com prising a pair of terminals 56 which are adapted to contact, thereby closing the circui t 54, when theseat 7 is infa closed position. 1

'I have, in my modified form, shown the spout 23', which is identical with. that indicatedby the numeral 23 and described in connection with my preferred form, associated with the top 19. This done for a sprocket 47 The rotating of the sprocket 43 imparts a rotary motion to the propeller 37 through the action of the gears 38, 39, the shaft 40, and the sprocket 41. The rotation of the propeller 37, when the sprocket 43 is rotated in'the direction indicated will tend to create a vacuumwithin the chamber 17 below the propeller thereby causing a current of air to be drawn from the room or the like, into the hose 30 and the chamber 17,

whereupon it is forced therefrom through the hose 29 and the pipe 27 to a distant or remote point.

Should it be desired to use the apparatus as a means for injecting air into a room, the

valve 23 is opened and the gear 43 is rotated by means of the chain 48 in a direction opposite to that indicated by the 'arrow. The reverse movement of the sprocket 43 will, cause the propeller 37 to rotate through the action of the various elements as heretofore described. 7 This rotation of the propeller 37 causes air to be drawn into the chamber 17, through the pipe 27 and hose 29, whereupon it is ejected from said chamher into the room through the valve23.

In use the operation of the modified form of my invention is as follows: Assuming that thevalve 23, as shown in Fig. 2, is in a closed position and it is desired by one to eject -polluted or undesirable atmosphere from a room or the like, the seat 7 is moved to a closed position, as shown, whereupon the terminals '56 of the eircuitclosure 55 are brought into contact. Thus an electriccirouit is established by the conductors 54 through which the motor 52 is supplied with electrical energy, thereby causing the propeller 53 ,to' rotate in'such a direction as to create a tendency to form a vacuum within the chamber below said propeller. As a result of this tendency air will ,be drawn intothe chamber 17 through the hose 30, wheree upon it will beexpelled from said chamber through the hose 29 and pipe 27.

Should it'be desired to use the'modified form of my invention as a means for injecting air into fa room the bottom 23, carrying the motor 52, is removed from the bottom of the intermediate section 18 andsecured to the top thereof. The top 19 may or may not be attached to the bottom of the intermediate section 18. It is :to be noted that by placing the bottom 23upo'n the top of the intermediate section 18 the propeller, when actuated by the motor 52, will rotate in the direction necessary to create a tendency to form a vacuum within the chamber 17 and above said propeller. As a result of this tendency air willbe drawn into the chamber 17 through the pipe 27 and hose 29 whereupon it will be expelled from within said chamber through the open valve 23 should the top 19, carrying said valve, be placed upon the bottom of the intermediate section 18. Should it be desired not to place the top 19 upon the bottom of the intermediate section 18, it is understood that the air will be driven or expelled from within the chamber 17 directly through the intermediate sec tion 18. It is to be further understood that when the modified form of my inventionis being used as a means for injecting air intoa room the electrical energy is supplied to i the motor 52 when the seat 7 is in a closed position as hereinbefore described.

I It is to be understood that various changes in the shape, size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claim.

Having thus described the invention, I claim:

An apparatus of the class described comprising a chamber, having an intermediate section, a top disposed upon one end of the intermediate section, and a bottom disposed upon the other end of said section; a propeller mounted within said chamber; means for rotating said propeller to establish an air current through said chamberin either an upward or downward direction; and a valve associated with said chamber, the valve being ada ted to permit air to pass from said eham er when traveling downwardly through the same,

EMMETI n. BAWLINGS. 

